When someone says something bad about you, your hommies or family members or says something that is really stupid. To save face, maintain peace, garner respect, or want to make a point, you give that person at olay slap or multiple olay slaps. Unlike the typical bitch slap which is a horizontal slap across the face, the olay slap starts with the backhand slap across the face and then ends with the hand in the verticle position.